From f098154b8d0b0adc9147070a90ad49f2f90cff07 Mon Sep 17 00:00:00 2001
From: Erki <erki@skullnet.me>
Date: Sat, 10 Feb 2024 23:49:23 +0200
Subject: [PATCH] Firmware: clock printing and regular printing

---
 firmware/main/clock_core.cpp | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/firmware/main/clock_core.cpp b/firmware/main/clock_core.cpp
index b3d3f88..f543fa0 100644
--- a/firmware/main/clock_core.cpp
+++ b/firmware/main/clock_core.cpp
@@ -7,6 +7,7 @@
 #include "esp_expected.hpp"
 
 #include <cstring>
+#include <ctime>
 
 #include <esp_event.h>
 #include <esp_log.h>
@@ -21,7 +22,8 @@ const char* TAG = "clock_core";
 
 constexpr EventBits_t WIFI_FAIL_BIT = BIT0;
 constexpr EventBits_t WIFI_CONNECTED_BIT = BIT1;
-constexpr EventBits_t SNTP_SYNCED = BIT2;
+constexpr EventBits_t SNTP_SYNCED_BIT = BIT2;
+constexpr EventBits_t CLOCK_UPDATE_BIT = BIT3;
 EventGroupHandle_t clock_core_event_group_;
 
 void wifiEventHandler(void* arg, esp_event_base_t event_base,
@@ -59,7 +61,12 @@ void wifiEventHandler(void* arg, esp_event_base_t event_base,
 
 void sntpEventHandler(struct timeval*)
 {
-  xEventGroupSetBits(clock_core_event_group_, SNTP_SYNCED);
+  xEventGroupSetBits(clock_core_event_group_, SNTP_SYNCED_BIT);
+}
+
+void timerEventHandler(TimerHandle_t)
+{
+  xEventGroupSetBits(clock_core_event_group_, CLOCK_UPDATE_BIT);
 }
 
 esp_err_t sntpInitialize()
@@ -122,6 +129,11 @@ namespace clock_core
 void run(const char* wifi_ssid, const char* wifi_password)
 {
   clock_core_event_group_ = xEventGroupCreate();
+  auto clock_timer = xTimerCreate("clock_core",
+                                  pdMS_TO_TICKS(60'000),
+                                  pdTRUE,
+                                  nullptr,
+                                  timerEventHandler);
 
   if (const auto res = wifiInitialize(wifi_ssid, wifi_password);
       !res.has_value())
@@ -133,7 +145,7 @@ void run(const char* wifi_ssid, const char* wifi_password)
   while (true)
   {
     const EventBits_t bits = xEventGroupWaitBits(clock_core_event_group_,
-                                                 WIFI_CONNECTED_BIT | WIFI_FAIL_BIT | SNTP_SYNCED,
+                                                 WIFI_CONNECTED_BIT | WIFI_FAIL_BIT | SNTP_SYNCED_BIT | CLOCK_UPDATE_BIT,
                                                  pdTRUE,
                                                  pdFALSE,
                                                  portMAX_DELAY);
@@ -147,15 +159,28 @@ void run(const char* wifi_ssid, const char* wifi_password)
         ESP_LOGE(TAG, "SNTP setup failed. Error: %s", esp_err_to_name(res));
         abort();
       }
+
+      xTimerStart(clock_timer, pdMS_TO_TICKS(10));
     }
     else if (bits & WIFI_FAIL_BIT)
     {
       ESP_LOGE(TAG, "WiFi setup in clock_core::run failed.");
     }
-    else if (bits & SNTP_SYNCED)
+    else if (bits & SNTP_SYNCED_BIT)
     {
       ESP_LOGI(TAG, "SNTP sync successful.");
     }
+    else if (bits & CLOCK_UPDATE_BIT)
+    {
+      char time_buf[64];
+      std::time_t time_now;
+      std::tm time_info;
+      std::time(&time_now);
+      localtime_r(&time_now, &time_info);
+
+      std::strftime(time_buf, sizeof(time_buf), "%c", &time_info);
+      ESP_LOGI(TAG, "Current time: %s", time_buf);
+    }
     else
     {
       ESP_LOGE(TAG, "WiFi setup encountered an unexpected set of bits. %lu", bits);